package com.yang.apo;

import com.alibaba.fastjson.JSONObject;
import com.yang.mapper.OperateLogMapper;
import com.yang.pojo.OperateLog;
import com.yang.utils.JwtUtils;
import io.jsonwebtoken.Claims;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;


import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;
import java.util.Arrays;

@Slf4j
@Component
@Aspect //切面类
public class LogAspect {

//    @Pointcut("execution(* com.yang.controller.DeptController.findById())") //提取公共的切点表达式
//    private void pt(){}

    @Autowired
    private HttpServletRequest httpServletRequest;

    @Resource(name = "operateLogMapper")
    private OperateLogMapper operateLogMapper;

//    @Around("pt()")
    @Around("@annotation(com.yang.anno.Log)")
    public Object recordLog(ProceedingJoinPoint joinPoint) throws Throwable {
        //操作人的id 当前登录员工ID
        //获取请求头中的jwt令牌 解析令牌
        String jwt = httpServletRequest.getHeader("token");
        Claims claims = JwtUtils.parseJWT(jwt);
        Integer operateUser = (Integer) claims.get("id");

        //操作时间
        LocalDateTime operateTime = LocalDateTime.now();

        //操作类名
        String className = joinPoint.getTarget().getClass().getName();

        //操作方法名
        String methodName = joinPoint.getSignature().getName();

        //操作方法参数
        Object[] args = joinPoint.getArgs();
        String methodParams = Arrays.toString(args);

        long begin = System.currentTimeMillis();

        //调用原始目标方法运行
        Object result = joinPoint.proceed();

        long end = System.currentTimeMillis();

        //方法返回值
        String returnValue = JSONObject.toJSONString(result);

        //操作耗时
        long costTime = end - begin;

        //记录操作日志
        OperateLog operateLog = new OperateLog(null, operateUser,operateTime,className,methodName,methodParams,returnValue,costTime);
        operateLogMapper.insert(operateLog);

        log.info("AOP记录操作日志:{}", operateLog);


        return result;

    }
}
